Population pharmacokinetics of teicoplanin and attainment of pharmacokinetic/pharmacodynamic targets in adult patients with haematological malignancy 

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Population pharmacokinetics of teicoplanin and attainment of pharmacokinetic/pharmacodynamic targets in adult patients with haematological malignancy  C.J. Byrne, J.A. Roberts, B. McWhinney, S.A. Ryder, J.P. Fennell, P. O'Byrne, E. Deasy, S. Egan, R. Desmond, H. Enright, D.M. D'Arcy, J. McHugh  Clinical Microbiology and Infection  Volume 23, Issue 9, Pages 674.e7-674.e13 (September 2017) DOI: 10.1016/j.cmi.2017.02.032 Copyright © 2017 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions

Fig. 1 Diagnostic plots for the final covariate model for teicoplanin. Population predicted versus observed concentrations (top left) and individual posterior predicted versus observed concentrations (top right). Visual predictive check (bottom) showing the percentiles of 1000 simulated teicoplanin concentration-time profiles (lines) superimposed with observed teicoplanin concentrations (circles) over one dosing interval on Day 3 from 48 to 72 hours. The grey shading around the percentiles represents the 95% CI around each percentile. The distribution of the simulated profiles is similar to that of the observed concentrations, suggesting that the model describes the data adequately. Clinical Microbiology and Infection 2017 23, 674.e7-674.e13DOI: (10.1016/j.cmi.2017.02.032) Copyright © 2017 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions

Fig. 2 Monte Carlo simulations and probability of target attainment (PTA) for various teicoplanin trough concentrations at 72 hours and a target area under the concentration-time curve from 48 to 72 hours to the minimum inhibitory concentration ratio (AUC/MIC) of ≥800, for a typical haematological malignancy patient with a total body weight of 70 kg and a creatinine clearance of 70 mL/min. The teicoplanin loading dose regimens were: four doses administered at 0, 12, 24, and 48 hours, or five doses administered at 0, 12, 24, 36, and 48 hours. The MIC range is based on the MIC distribution for coagulase-negative staphylococci in the study cohort. Clinical Microbiology and Infection 2017 23, 674.e7-674.e13DOI: (10.1016/j.cmi.2017.02.032) Copyright © 2017 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions